[Serisan]

heh, humorous tidbit:

You need to have a spear, sword, or bow equipped for the skill to be available. If you're an Assassin (warfare + rogue), you can use an axe or mace in your offhand and have that weapon selected for the Lethal Strike. You can easily test this with weapons of vast damage disparity (a good mace and a bad sword is the easiest to work with. I have Thorny Maul and some green sword on my Assassin and, even though they're relatively similar DPS, the damage range difference is enough to tell, as it's nearly 2:1 in favor of the mace).